In a new expletive-filled interview, Kristen Stewart explains why playing Snow White and killing people is harder than she ever imagined…she says she’s exhausted!

For months now, Kristen Stewart has been mad at work on Snow White and the Huntsman and now the 21-year-old actress is opening up about the experience, saying it’s harder than it seems to play “the most compassionate person on earth.”

In the interview, which was with Boxoffice Magazine, Kristen explained how Snow White is sweet and pure, which makes it that much harder to pretend to kill people.

“The way that you fight is that you must take out anything that hurt your people. Basically, I’m fighting evil—I’m fighting the most evil motherf–kers-and it’s fine that they’re being killed,” Kristen said. ” It’s anguish. It’s literally f–king anguish. She takes absolutely no pleasure in ever hurting anything.”

She added, “I’m exhausted right now and I was thinking, ‘The fight stuff is coming up, maybe that won’t be so bad.’ And then I realized that they’re probably going to be my most emotional scenes because I’m killing people and I’m Snow White. It’s a really f–king cool way to approach a movie where so many people die. Not that I’m criticizing violent movies—I love them, generally—but it is nice to do it this way.”

We cannot wait to see Kristen play the role of Snow White when the film hits theaters June 1 of next year. Even though we’ve seen her as Bella, who is also incredibly compassionate, we are curious to see Kristen’s take of one of the most innocent characters in fictional history.